Does Foldometer work on iPhone Duo?
Yes. Matthew Purcell says so on the App Store: Open iPhone Duo and Foldometer turns its hinge into a precision instrument.
- On iPhone Duo
- Adapted
- Developer
- Matthew Purcell
- Category
- Utilities
- Current version
- 1.0 · 21 October 2026
- Popularity
- #71 in the top charts in Singapore
- Last checked
How we know
Apple or the developer says the app is built for iPhone Duo's inner screen. See it on the App Store
History on iPhone Duo
- · Adapted (version 1.0)
Other Utilities apps on iPhone Duo
-
ShadowrocketShadow Launch Technology Limited · UtilitiesNot yetLast update 7 September 2026 -
Google ChromeGoogle · UtilitiesUpdated, unconfirmedUpdated 27 October 2026 -
GoogleGoogle · UtilitiesUpdated, unconfirmedUpdated 26 October 2026 -
Proton VPNProton AG · UtilitiesNot yetLast update 8 June 2026 -
Microsoft EdgeMicrosoft Corporation · UtilitiesUpdated, unconfirmedUpdated 26 October 2026 -
MyNIISeJABATAN DIGITAL NEGARA (JDN) · UtilitiesNot yetLast update 12 August 2026 -
ScamShieldGovernment Technology Agency · UtilitiesUpdated, unconfirmedUpdated 26 October 2026 -
Banana RSS Player秀华 李 · UtilitiesNot yetLast update 8 January 2023
All apps on iPhone Duo in Singapore →
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Good to know
Does Foldometer work on iPhone Duo?
Yes. Matthew Purcell says so on the App Store: “Open iPhone Duo and Foldometer turns its hinge into a precision instrument.”
Why do some apps have black bars on iPhone Duo?
Because they were built before Apple's iPhone Duo tools. On the inner screen, an app built for an older iOS opens in an iPhone-size window on a black background; one built for iOS 27.0 uses more of it but leaves some space blank; only apps built with the iOS 27.1 SDK, which developers have had since 5 October 2026, use the whole display.
Do apps that aren't adapted still work on iPhone Duo?
Yes. Every iPhone app runs on iPhone Duo: one that isn't adapted just doesn't fill the inner screen until its developer updates it.
How we measure
Sources: Apple's list of apps adapted to iPhone Duo (22 October 2026) and each app's App Store record (version, release date, release notes, description). Apple doesn't say which tools an app was built with, so an app stays “Updated, unconfirmed” until its developer says more.